Question

Which of the following statements are true for Compton effect?
(A) The wavelength of the scattered X-rays is larger than that of the incident X-rays.
(B) The change in wavelength depends on the intensity of the incident X-rays.
(C) The change in wavelength depends on the scattering angle.
(D) The wavelength of the scattered X-rays is smaller than that of the incident X-rays
Choose the correct answer from the options given below

• A. A and B are correct
• B. B and C are correct
• C. A and D are correct
• D. A and C are correct

Hint:

Compton shift: ∆λ = λ ′ − λ =h/mec(1 − cos θ). It depends on angle θ, not the intensity of incident radiation.

Answer 1

The Correct Option is D

Compton effect shows an increase (shift) in the wavelength of scattered X-rays relative to the incident X-rays, and this shift depends on the scattering angle. It does not depend on the incident intensity. So statements (A) and (C) are true, while (B) is false and (D) is contradictory to (A).